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The management team has extensive M&A and turnaround management experience in a number of industries, and is familiar with all aspects of financial management. Management is committed to growing the value of the Frauenthal Group’s industrial investments.


Erika Hochrieser

Earned her Master’s Degree in International Business at the University of Vienna. She then studied at the University of California, Los Angeles (UCLA) and graduated with a degree in Social Pedagogy.

2008 - 2017 Managing Director of the Group’s Finance Company Frauenthal Ost Beteiligungs GmbH.

2014 - 2015 Certified Investor Relations Officer (CIRO)

2014 Vice President Finance of Frauenthal Holding AG, responsible for the areas Finance, Controlling and Investor Relations, Deputy Compliance Officer

2014 - 2018 Managing Director for Frauenthal Automotive Holding GmbH, parent company for the Automotive Division.

Since 2015, Managing Director of the Frauenthal Beteiligungsverwaltungs AG, Frauenthal Haustechnik Beteiligungs GmbH, parent company of the Trade Division and of Frauenthal Immobilien GmbH, a the real estate company.

Since 2016, also Managing Director of Frauenthal Automotive Finance GmbH

2018 Board appointment as CFO with main responsibilities Finance, internal and external reporting, Treasury, IT and Investor Relations within the Frauenthal group. Before Erika Hochrieser was appointed as board member, she had been officer with statutory authority of the Frauenthal Holding AG and responsible for the areas Finance, Controlling and Investor Relations.

2020 joined the Executive Board of Frauenthal Service AG in addition to role of CFO at the Holding, responsible for finance, human resources and legal affairs in the Trading division.


Hannes Winkler

1974 - 1979 Studied Business Informatics at the University of Vienna, graduated Master of Economics

1979 - 1981 Postgraduate research, doctoral studies & internship Paris

1982 University of Vienna, Doctorate in Economics

1981 - 1983 Stanford Business School, MBA

1984 - 1989 McKinsey & Co Management consultant in San Francisco, Hong Kong, Japan, Australia, Germany and Austria

1989 - 1994 EFS Group, Vienna - Managing Director, Management, HR and IT consulting

1992 - Co-Founder Ventana Beteiligungsgesellschaft m.b.H. as a holding company for EFS Group, M&A Bank AG and future industrial investments as joint Managing Director

1994 - 1997 Operational management of the Group subsidiary, Schönherr Chemnitzer Webmaschinenbau GmbH (restructuring and recovery)

From 1998 - 2017 Member (Chairman till 2007 & from 2010) Supervisory Board Frauenthal Holding AG

From 2004 - 2017 Member Supervisory Board SHT Haustechnik AG

2010 Overall leadership & responsibility for Frauenthal Holding AG

From 2014 - 2017 Member, Deputy Chairman and as Chairman of the Supervisory Board of ÖAG AG

From 2014 - 2017 Chairman of the Supervisory Board of Frauenthal Service AG

2016 becomes controlling shareholder of Frauenthal Holding AG through a public procedure controlled by the Austrian Takeover Commission

Since 2018 Chief Executive Officer of Frauenthal Holding AG

Since 2010 Managing Director and sole shareholder of Ventana Holding AG, since 2019 Ventana Holding AG draws up the consildated financial statements for the largest group of companies to which the Frauenthal Group belongs.


Michael Ostermann

Between 1985 and 1988, training as a construction mechanic specializing in steel and shipbuilding at Siemens AG in Mülheim an der Ruhr, Germany.

From 1989 to 1994, mechanical engineering studies in Düsseldorf, Germany, specializing in production technology, graduating as Diplom-Ingenieur.

Over 25 years of experience in the automotive supply industry in Europe, Asia, and North and South America, 20 of them in leading positions.

1994 - 2008 Frauenthal Holding AG & its subsidiaries in various functions

2005 - 2008 Member of the Executive Board of Frauenthal Holding AG in Vienna, responsible for the Automotive Division.

2009 - 2018 Executive Vice President and President EMEA for EXIDE TECHNOLOGIES, a leading American battery manufacturer. Responsible for all European activities, the division in EMEA achieved sales of app. € 1.6 billion in 2018 and employed 5,500 people.

2015 - 2018 Additionally responsible for all activities of EXIDE in APAC (Asia & Pacific Region). The division in APAC achieved sales of app. € 200 million in 2018 and employed 500 people.

2019 - 2020 COO for iSi Automotive Holding in Vienna, an Austrian manufacturer of airbag systems with locations in Austria, Germany, Hungary, Thailand, China and Mexico.

Since 2005 active in various relevant industry associatons

2011 and 2019 Member of the board of ZVEI (German Electrical and Electronic Manufacturers`Association), one of the most important industry associations in Germany.

2021 appointed to the Executive Board of Frauenthal Holding AG, responsible for the Frauenthal Automotive Division and Investor Relations for the Frauenthal Group.


Johann Schallert

Born in 1959, he studied economics at the University in Innsbruck. From 1984 to 1988 responsible for financial accounting and then for Order Management and Logistics department at Tyrolit Schleifmittelwerke Swarovski KG. In 1988 he integrated the F.M. Zumtobel-Gruppe and develop to Chief Executive Officer of the company. Since 2003 managing partner of the Schallert Management GmbH. Johann Schallert was member of the Supervisory Board of Frauenthal Holding AG from 2006 until 2009. Johann Schallert was in the 26 Annual General Meeting of Frauenthal Holding AG, on 20 May 2015, elected to the Supervisory Board of Frauenthal Holding AG as a member.

His replacement is Johann Schallert, who will take over as Supervisory Board Chairman on 1 January 2018 as Hannes Winkler was appointed Chairman of the Executive Board for a three-year term beginning on 1 January 2018 and will step down as Chairman of the Supervisory Board with effect from 31 December 2017.


Dietmar Kubis

Born in 1957, Dietmar Kubis studied law at the University of Hamburg from 1976–1981, after which he passed his first state examination in law and undertook his legal traineeship in Hamburg. In 1988 he took his second state law examination and completed his doctoral studies in law at the University of Hamburg. After some years as a research assistant and lecturer at the department for trade, shipping and business law (Prof. Karsten Schmidt) and the department for business law at the Wirtschaftsakademie Schleswig-Holstein (Schleswig-Holstein Business Academy) in Kiel he worked in the legal department at Daimler-Benz AG headquarters in Stuttgart from 1988–1994. In 1994 Mr Kubis moved to the legal department of Jenoptik GmbH, where he was a member of the management board from 1996–2002, with responsibility for legal issues and investments. From 1998–2005 he was spokesman of the management board of Deutsche Effecten- und Wechsel-Beteiligungsgesellschaft AG (DEWB AG) in Jena. Since 2005 Mr Kubis has been a partner of the ACADA Rechtsanwaltsgesellschaft mbH legal practice in Jena. In addition, he holds or has held the following positions: a member of the supervisory board of Nexus AG, Villingen-Schwenningen (a listed company) from 2004–2009; a member of the investments committee of High Tech Beteiligungen GmbH & Co. KG, Düsseldorf since 2001, and Deputy Chairman of the Supervisory Board of Frauenthal Holding AG, Vienna since 1999. From 1.1. 2015 to 24.9.2015 he temporary initates the Supervisory Board of Frauenthal Holding AG. On 24.9.2015 he has been elected to Chairman of the Supervisory Board, on 27.6.2016 to Deputy Chairman.


Claudia Beermann

Born in 1966, she studied economics at the University in Münster. From 1994 to 2004 she works in Linnemann-Schnetzer Group tätig – at first in the controlling team (until 1999) then as Managing Director (from Jan. 2000). After the acquisition of the Linnemann-Schnetzer GmbH by Frauenthal Group in 2004, Mrs. Beermann has been appointed member of the Executive Board of Frauenthal Holding AG (until Oct. 2007). From 2008 to 2019 she was responsible for the CFO-Position of FMTG - Falkensteiner Michaeler Tourism Group AG, before she undertook the CFO role at iSi Automotive Holding GmbH (in Mai 2019).

Claudia Beermann was elected in the 30th Annual General Meeting of Frauenthal Holding AG, on 19 June 2019 to the Supervisory Board of Frauenthal Holding AG as a member.


Andreas Staribacher

Born 1957, studied law at the University of Vienna. MBA, certified public accountant, tax consultant, CPA (MA). 8.4.1995 to 4.1.1996 Federal Minister of Finance.

Managing partner of PKF CENTURION Wirtschaftsprüfungsgesellschaft mbH. Specialized in: national and international individual and consolidated financial statements, audit manager of banks and insurance companies, court-certified expert, aviation consulting.

Dr. Staribacher was elected as a member of the Supervisory Board of Frauenthal Holding AG at the 29th Annual General Meeting of Frauenthal Holding AG, on 5.6.2018.


Johannes Strohmayer

Johannes Strohmayer was born in 1950. He studied Economics and Journalism at the University of Vienna from 1970–1975, attending Stanford University in 1974 (dissertation), and undertook postgraduate studies at the Institut des Sciences Politiques at the Sorbonne in 1976. In 1977 he joined the Austrian Federal Chamber of Economics. From 1981–1983 he worked as an accountant and expert witness in Vienna. From 1983–1998 Mr Strohmayer chaired the tax reform commission at the Ministry of Finance. From 1990–2002 he lectured at the Vienna University of Economics and Business Political Economy Department. From 1993–1996 he was a managing partner at Hübner & Hübner tax accountants. In 1993 he served on the international committee of the Austrian Chamber of Accountants and Tax Consultants. Since 1999 he has been the managing director of Euro Capital Partners. In addition to the above, Mr Strohmayer has been/is a member of the supervisory boards of: Creditanstalt-Bankverein (1984–1999); Österreichische Bundesbahnen (Austrian Federal Railways) (2005–2007); Österreichische Staatsdruckerei GmbH (2000–); and MIFIM Beteiligungs AG (2008–). He has belonged to the university council of the Medical University of Vienna since 2003. He joined the Frauenthal Holding AG Supervisory Board in 2010.


Thomas Zwettler

August Enzian

Klaus Kreitschek

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